Can a damaged glow plug be repaired on a Duramax Diesel?

The AERA Technical Committee offers the following information on glow plug thread repair for 2001- 2016 GM 6.6L Duramax diesel engines. Often times, the threads for the glow plugs on these engines become damaged during the glow plug removal process. There is a repair tooling kit now available to restore the thread to better than new condition.

Are there glow plugs for a diesel engine?

These glow plugs will do a good service for you and your car. They are designed to provide diesel engines with the heat which they need for cold starts. These glow plugs manage ignition in all cylinders and enhance throttle response. You definitely won’t be able to resist temptation to try these ones on your vehicle.

Are there glow plugs that last a long time?

The good thing about glow plugs is that they are incredibly long lasting. What’s more, they are the most cost-effective car parts to replace. These glow plugs will do a good service for you and your car. They are designed to provide diesel engines with the heat which they need for cold starts.

Can a bad glow plug make a car hard to start?

If you have a four cylinder, one damaged glow plug will cause slight hard starting and a miss. Two plugs out of order will cause a very hard start and very rough operation. Three bad plugs make the car almost impossible to start and keep running. If we are talking about larger engines, the story is the same.

How does a glow plug work on a truck?

Lly’s also tells you which individual plug has failed. 01-04 federal trucks use a basic glow plug system with 1 relay that sends power to the #8 glow plug, a metal rail connects the drivers side glow plugs together, a wire runs from #2 to the #1 glow plug, and another rail connects the passenger side glow plugs together.

What should the temperature be without glow plugs?

The LB7 should start down to about 30 degrees without glow plugs with just a little extra cranking and some white smoke on startup. Much below that and they won’t fire off without glow plugs.

How big should the lead be on a glow plug?

Touch on end of the lead to the threaded part of the plug and the other end to the block and it should be around .8ohms if it’s much higher than that it’s likely shorted and bad. Click to expand…

Are there any issues with the Duramax check engine lights?

Glow Plug System Issues – Nearly half of the check engine lights that come in for the Duramax pickups are for glow plugs. The glow plugs burn out over time and can be a real nuisance to remove from the aluminum heads sometimes.

What are the issues with the Duramax glow plugs?

Not only does the threaded metal part of the glow plug seize in the head, but the tips of the glow plugs sometimes bulb making it really difficult to get them out. Also the metal strips that connect the glow plugs together on each side corrode and break causing issues. Lastly we replace a fair amount of glow plug controllers as well.

Are there any issues with the Duramax pickup?

This can produce long cranks and hard starts. Glow Plug System Issues – Nearly half of the check engine lights that come in for the Duramax pickups are for glow plugs. The glow plugs burn out over time and can be a real nuisance to remove from the aluminum heads sometimes.

Are there any issues with the Duramax primer button?

Under the primer button there are some orings that fail on a regular basis. This can produce long cranks and hard starts. Glow Plug System Issues – Nearly half of the check engine lights that come in for the Duramax pickups are for glow plugs.

Can a damaged glow plug be repaired on a Duramax Diesel?